On Mon, Oct 06, 2008 at 09:39:40AM -0500, Kirk Strauser wrote: > > I have a Gigabyte motherboard with an Intel ICH-9 chipset, and a > 3.0GHz Core 2 Duo (E8400). The coretemp sysctls seem to always show > 50C as the baseline temperature: > > $ sysctl dev.cpu | grep temp > dev.cpu.0.temperature: 50 > dev.cpu.1.temperature: 50 > > This is with a big PSU fan, a good CPU fan, a clean heatsink, and two > case fans aimed the right direction (front fan pulling cool air in, > rear fan pushing warm air out). If I reboot and go into the BIOS, I > get numbers around 42-43C. I know it's kind of hard to compare > directly, but the coretemp numbers are from a totally idle system with > powerd scaling it back to 373MHz, so it should be as cool as when > sitting idle in the BIOS screens. When I work the system hard, like > running "make -j4 buildworld", I see temperatures up around 63-64C, > and I'm almost positive that's not right. > > Any ideas why coretemp and the BIOS would show such different numbers?
To add some numbers, I've got an E6550 on a Gigabyte GA-P35-DS3L (ICH9) and I get: $ sysctl dev.cpu | grep temp dev.cpu.0.temperature: 24 dev.cpu.1.temperature: 28 Ambient room temp: 23°C That's running powerd and the machine idle, standard heatsink/fan combo, 1x12cm case fan. Your's might run hotter (higher clock speed? Mine: 2.33GHz) but I wouldn't expect it to run *so* much hotter. I'd expect your numbers to be right if all the ACPI stuff is working. To confirm this, check in Windows, if you can: http://www.techpowerup.com/realtemp/ Tom's hardware has some stuff about Intel temps: http://www.tomshardware.co.uk/forum/221745-11-core-quad-temperature-guide If that is high too and is outside the proper temperature envelope for your CPU, that leaves a possibility that your heatsink/fan might not be seated properly. What we could do with is some numbers from somebody running a similar CPU. Regards, -- Frank Contact info: http://www.shute.org.uk/misc/contact.html _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"